Hi Jim,
I was actually using the Harris RF-124 power supply as a design guide, but also
trying to use parts that I have on hand at the same time.
I'm using a Hammond 193S DC Filter Choke, inductance 1.0H @ 1000mA, 193 Series
CHOKE 1H @ 1A DC Seems to be about 5.6 Ohms.
As far as screen transformer, I wound my own transformer repurposing an old
750VA transformer with an EI-152.4 core. 575V no load with 900mA. I was just
using 100K Ohms across the 200uF cap.
Your question made me look closer and the RF-124 uses 30uF with a 25K 40W
bleeder resistor.
Paul.
|>
> What's the DC resistance of the 1 H choke ? You will want a HD bleeder on
> the screen supply at all times. If sized correctly, the combo of the HD
> screen xfmr, choke, 200 uf cap + bleeder should provide ample screen
> regulation for SSB use. The dynamic regulation should be ample for both
> your proposed B+ and screen supply.
>
> Jim VE7RF
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